The M'arrillian Invasion: Turn of the Tide expansion set focuses on the M'arrillian Tribe and their conquest of Perim. The four dryland Tribes of Perim, OverWorlders, UnderWorlders, Danians and Mipedians, use ancient strategies and legendary Battlegear to prepare their stand against the invasion from the Deep.The four Tribes of Perim gather their resources and begin to fight back against the invading M'arrillian Creatures.The powers of Natureforce and Legendary Battlegear, including Vehicles are rediscovered and put to good use.A very powerful UnderWorld Creature favorite returns under the domination of M'arrillian mind control.New versions of Brainwashed Minion Creatures, Fluidmorphers and Kha'rall Warriors.Explore exciting new stories featuring Lord Van Bloot, Intress and Iflar the Mipedian Crown Prince.